CN217586968U

CN217586968U - Defect detection device of optical film

Info

Publication number: CN217586968U
Application number: CN202221578014.8U
Authority: CN
Inventors: 朴治炫; 罗喜柱; 郑熙锡; 崔允喆
Original assignee: Suzhou Lemaoxing Photoelectric Co ltd
Current assignee: Suzhou Lemaoxing Photoelectric Co ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-10-14
Anticipated expiration: 2032-06-22

Abstract

The utility model discloses a defect detection device of an optical film, which belongs to the technical field of optical film production detection, and comprises a supporting bottom plate, the upside of the supporting bottom plate is sequentially provided with a driving component, a detection component, a marking component and a winding component from left to right, the driving component comprises a driving roller and a driven roller which are arranged in parallel, the driving roller and the driven roller are sequentially arranged from top to bottom, the rear end of the driving roller is provided with a driving motor, the detection component comprises a detection frame, and a light source and an imaging processing device which are arranged at the upper side and the lower side in the detection frame, the imaging processing device comprises an imaging module and an image processing module, and the marking component comprises a movable strip and a supporting plate which are arranged in parallel from top to bottom; after detecting out the defect position, accessible electric putter control activity strip and pjncture needle downstream, the cooperation backup pad is used to can puncture the mark to the blooming, the later stage of being convenient for is tailor and is handled.

Description

Defect detection device of optical film

Technical Field

The utility model belongs to the technical field of the blooming production detects, concretely relates to defect detecting device of blooming.

Background

The optical film is a thin film coated or plated on an optical element to change the optical property of the carrier by applying the principle of optical interference, and is one or more layers of dielectric film or metal film or the combination of the two films. The optical film can enable light with different polarization planes to have different characteristics by modulating the transmittance and the reflectivity of the surfaces of different wave bands of the optical film. Optical films are mainly classified into brightness enhancement films, diffusion films, reflection films, composite films, optical filters, polarizers, and the like according to their different characteristics.

The optical film belongs to a relatively precise optical element, and if the film has defects such as black spots, white spots, wrinkles, bending, concave-convex and the like, the processing effect of the optical film on light can be greatly influenced, and even major defects of related equipment are caused, so that the defect detection of the optical film has important value. Publication No. CN206618705U discloses an optical film defect detection apparatus, including: a light source for generating polarized light to project to one side of the optical film; the imaging device is used for receiving light emitted after the polarized light passes through the optical film on one side of the optical film and forming an optical film image; and the image processing system is used for identifying the defect part in the obtained optical film image according to the image gray scale change. The optical film has optical characteristics of consistent light propagation direction, if the optical film has flaws, the consistency of the light propagation direction is destroyed at the flaw parts, the polarized image of the optical film is formed by irradiating the optical film with polarized light, the flaw parts in the polarized image show obvious light and shade change, and therefore the defects in the optical film can be effectively identified.

When the scheme is used, only the optical film can be tested, but the defect position detected in the test cannot be marked, so that the later-stage treatment is inconvenient and needs to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a defect detecting device of blooming to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a defect detection device of blooming, includes supporting baseplate, supporting baseplate's upside has from left to right set gradually drive assembly, determine module, mark subassembly and rolling subassembly, drive assembly includes parallel arrangement's drive roller and driven voller, drive roller and driven voller from the top down set gradually, the rear end of drive roller is provided with driving motor, determine module is including detecting the frame and setting up in the light source and the formation of image processing equipment of detecting the frame inside upper and lower both sides, formation of image processing equipment includes imaging module and image processing module, mark subassembly includes from the top down parallel arrangement's activity strip and backup pad, the upside symmetry of activity strip is provided with two electric putter, the pjncture needle that a plurality of equidistance of downside fixedly connected with of activity strip set up, the upside of backup pad is just being provided with the perforation groove to the position of pjncture needle, the subassembly includes the rolling roller and sets up in the rolling motor of rolling roller rear end.

By adopting the scheme, when the optical film winder is used, the optical film is driven to transmit through the driving assembly, the defect position of the optical film is detected through the detection assembly, the defect position of the optical film is marked through the marking assembly after the detection, and the marked optical film is wound by the winding assembly; specifically, the optical film is driven by a frictional force between the driving roller and the driven roller, the optical film passes between the light source and the image forming apparatus, and the polarized light generated by the light source is projected to the optical film and transmitted through the optical film. The optical film has the optical characteristic of consistent light propagation direction, when a defect exists in the film, the propagation direction of transmitted light at the defect part can be changed, obvious light and shade change can be shown at the defect part in an optical film image formed by receiving the transmitted light by the imaging module, so that the defect in the optical film can be effectively detected through the shot film image, the film image is processed through the image processing module, an electric push rod at the rear side is controlled to move downwards, a driving motor and a winding motor are controlled to stop, the response speed of the electric push rod is matched with the transmission speed of the optical film, a movable strip and a puncture needle are controlled to move downwards and quickly through the electric push rod, the defect position of the optical film is subjected to puncture marking by matching with a supporting plate and a perforation groove, the driving motor and the winding motor are controlled to start after first marking, secondary marking is performed, and the marked optical film continuously moves to be wound by a winding roller.

Further, the outer ring side of the driving roller and the driven roller is made of rubber.

Adopt above-mentioned scheme, adopt the rubber material can avoid wearing and tearing the blooming, increase frictional force simultaneously.

Further inject, the left and right sides of the detection frame all is provided with the light screen, the middle part of light screen is provided with the membrane groove of passing through.

By adopting the scheme, the shading plate can avoid the influence of external light on the transmission of the light source.

Further inject, be provided with the locating rack between detection component and the mark subassembly, the inboard parallel arrangement of locating rack has movable rod and dead lever, movable rod and locating lever all with the swing joint between the locating rack.

By adopting the scheme, the transmission of the optical film is positioned through the movable rod and the positioning rod, so that abrasion in the transmission process is avoided.

Further inject, the upper portion of locating rack is just seted up movable groove to the position of movable rod tip, the position that the tip of movable rod is just to movable groove is provided with the locating piece, the lower extreme fixedly connected with guide bar of locating piece, the lower part ring side cover of guide bar is equipped with the fixed block, fixedly connected with reset spring between fixed block and the locating piece, reset spring sets up the ring side of guide bar.

By adopting the scheme, when the optical film fixing device is used, the guide rod and the positioning block are pushed to be attached downwards through the reset spring, so that the positioning rod and the fixing rod are kept attached relatively, the shaking amplitude of the optical film during transmission is reduced, and the protection effect is further improved.

Further inject, both ends all are provided with the arc portion about the upside of backup pad, two support columns of lower extreme fixedly connected with of backup pad, the lower extreme fixed connection of support column is at the upside of supporting baseplate.

Adopt above-mentioned scheme, set up the wearing and tearing that take place when the arc portion can avoid the optical film transmission, can carry out fixed stay to the backup pad through the support column simultaneously.

Compared with the prior art, the beneficial effects of the utility model are that:

according to the defect detection device of the optical film, the driving assembly, the detection assembly, the marking assembly and the winding assembly are arranged, when the defect detection device of the optical film is used, after the defect position of the optical film is detected, the movable strip and the puncture needle can be controlled to move downwards through the electric push rod, and the defect detection device is matched with the supporting plate for use, so that the optical film can be punctured and marked, and the later cutting treatment is facilitated;

this defect detection device of optical film is through setting up movable rod and dead lever, in the use, can avoid the optical film to produce the shake in transmission process to avoid taking place wearing and tearing in the continuous transmission testing process, can realize continuous production, and detection efficiency is high.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic view of the internal structure of the inspection rack of the present invention;

fig. 3 is a schematic structural diagram of the detecting assembly of the present invention.

The main element symbols are as follows:

in the figure: 1. a support base plate; 2. a drive roller; 3. a driven roller; 4. a drive motor; 5. a detection frame; 6. a light source; 7. an image processing apparatus; 8. a movable bar; 9. a support plate; 10. an electric push rod; 11. puncturing needle; 12. a perforation slot; 13. a winding motor; 14. a visor; 15. a membrane permeation groove; 16. a positioning frame; 17. a movable rod; 18. fixing the rod; 19. a movable groove; 20. positioning blocks; 21. a guide bar; 22. a fixed block; 23. a return spring; 24. an arc portion; 25. a support column; 26. and (7) winding the roller.

Detailed Description

In order to make the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below with reference to the accompanying drawings and examples.

The first embodiment of the present application is:

please refer to fig. 1-3, the utility model provides a defect detecting device of optical film, including supporting baseplate 1, supporting baseplate 1's upside from left to right has set gradually drive assembly, determine module, mark subassembly and rolling subassembly, drives the optical film through drive assembly and carries out the transmission, detects the defective position of optical film through determine module, detects the back and marks the defective position of optical film through mark subassembly, and the optical film after the mark is rolled by rolling subassembly.

In this embodiment, the driving assembly includes a driving roller 2 and a driven roller 3 which are arranged in parallel, the driving roller 2 and the driven roller 3 are sequentially arranged from top to bottom, the optical film is driven by friction force between the driving roller 2 and the driven roller 3, the outer ring sides of the driving roller 2 and the driven roller 3 are made of rubber materials, the optical film can be prevented from being abraded by the rubber materials, the friction force is increased, and the driving motor 4 is arranged at the rear end of the driving roller 2.

In this embodiment, the detection assembly includes detection frame 5 and sets up in light source 6 and the formation of image processing apparatus 7 of detection frame 5 inside upper and lower both sides, formation of image processing apparatus 7 includes imaging module and image processing module, detection frame 5's the left and right sides all is provided with light screen 14, light screen 14's middle part is provided with and passes through membrane groove 15, it can avoid external light to influence the transmission of light source 6 to set up light screen 14, the blooming passes through between light source 6 and the formation of image processing apparatus 7, the polarized light that light source 6 produced projects the blooming, pass through the blooming and transmit out. However, when there is a defect in the film sheet, the propagation direction of the transmitted light changes at the defective portion, and a bright-dark change is clearly shown at the defective portion in an optical film image formed by the imaging module receiving the transmitted light, so that the defect in the optical film is effectively detected from the captured film image, and the film image is processed by the image processing module.

In this embodiment, the marking assembly includes a movable strip 8 and a support plate 9 which are arranged in parallel from top to bottom, two electric push rods 10 are symmetrically arranged on the upper side of the movable strip 8, a plurality of puncture needles 11 are fixedly connected to the lower side of the movable strip 8 at equal intervals, a perforation slot 12 is arranged on the upper side of the support plate 9 just opposite to the puncture needles 11, and the winding assembly includes a winding roller 26 and a winding motor 13 arranged at the rear end of the winding roller 26.

In the embodiment, a positioning frame 16 is arranged between the detection assembly and the marking assembly, a movable rod 17 and a fixed rod 18 are arranged in parallel on the inner side of the positioning frame 16, the movable rod 17 and the positioning rod are movably connected with the positioning frame 16, and the transmission of the optical film is positioned through the movable rod 17 and the positioning rod, so that abrasion in the transmission process is avoided; a movable groove 19 is formed in the position, opposite to the end of the movable rod 17, of the upper portion of the positioning frame 16, a positioning block 20 is arranged in the position, opposite to the movable groove 19, of the end of the movable rod 17, a guide rod 21 is fixedly connected to the lower end of the positioning block 20, a fixing block 22 is sleeved on the lower ring side of the guide rod 21, a return spring 23 is fixedly connected between the fixing block 22 and the positioning block 20, and the return spring 23 is sleeved on the ring side of the guide rod 21; when the optical film fixing device is used, the guide rod 21 and the positioning block 20 can be pushed to be attached downwards through the return spring 23, so that the positioning rod and the fixing rod 18 are kept attached relatively, the shaking amplitude of the optical film during transmission is reduced, and the protection effect is further improved.

The second embodiment of the present application is:

on the basis of embodiment one, the defect detecting device of two kinds of blooming of this embodiment still includes that both ends all are provided with arc portion 24 about the upside of backup pad 9, two support columns 25 of lower extreme fixedly connected with of backup pad 9, and the lower extreme fixed connection of support column 25 sets up arc portion 24 and takes place wearing and tearing when can avoiding the blooming transmission at the upside of supporting baseplate 1, can carry out fixed stay to backup pad 9 through support column 25 simultaneously.

When the optical film winding device is used, the optical film is driven to transmit through the driving assembly, the defect position of the optical film is detected through the detection assembly, the defect position of the optical film is marked through the marking assembly after detection, and the marked optical film is wound by the winding assembly; specifically, the optical film is driven by a frictional force between the driving roller 2 and the driven roller 3, the optical film passes between the light source 6 and the image forming process device 7, and the polarized light generated by the light source 6 is projected to the optical film and transmitted through the optical film. The optical film has the optical characteristic of consistent light propagation direction, when a defect exists in the film, the propagation direction of transmitted light at the defect part is changed, obvious light and shade change is shown at the defect part in an optical film image formed by receiving the transmitted light by the imaging module, so that the defect in the optical film is effectively detected through the shot film image, the film image is processed through the image processing module, the electric push rod 10 at the rear side is controlled to move downwards, the driving motor 4 and the winding motor 13 are controlled to stop, the response speed of the electric push rod 10 is matched with the transmission speed of the optical film, the movable strip 8 and the puncture needle 11 are controlled to move downwards quickly through the electric push rod 10, the defect position of the optical film is punctured and marked by matching with the supporting plate 9 and the perforation groove 12, the driving motor 4 and the winding motor 13 are controlled to start after the first marking, the secondary marking is carried out, and the marked optical film continues to move to be wound by the winding roller 26.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention shall be covered by the claims of the present invention.

Claims

1. A defect detecting apparatus for an optical film, characterized in that: including supporting baseplate (1), the upside of supporting baseplate (1) has from left to right set gradually drive assembly, detection module, mark subassembly and rolling subassembly, drive assembly includes parallel arrangement's drive roller (2) and driven voller (3), drive roller (2) and driven voller (3) from the top down set gradually, the rear end of drive roller (2) is provided with driving motor (4), detection module is including detecting frame (5) and setting up in light source (6) and formation of image processing equipment (7) of detecting frame (5) inside upper and lower both sides, formation of image processing equipment (7) are including imaging module and image processing module, mark subassembly includes from the top down parallel arrangement's activity strip (8) and backup pad (9), the upside symmetry of activity strip (8) is provided with two electric putter (10), pjncture needle (11) that a plurality of equidistance of downside fixedly connected with of activity strip (8) set up, the upside of backup pad (9) is just being provided with perforation groove (12) to the position of pjncture needle (11), the rolling subassembly includes wind-up roll (26) and sets up in motor (13) rear end of rolling roll (26).

2. The apparatus for detecting defects in an optical film according to claim 1, wherein: the outer ring sides of the driving roller (2) and the driven roller (3) are made of rubber.

3. The apparatus for detecting defects in an optical film according to claim 1, wherein: light shielding plates (14) are arranged on the left side and the right side of the detection frame (5), and a membrane penetrating groove (15) is arranged in the middle of each light shielding plate (14).

4. The apparatus for detecting defects in an optical film according to claim 1, wherein: be provided with locating rack (16) between detection component and the mark subassembly, the inboard parallel arrangement of locating rack (16) has movable rod (17) and dead lever (18), swing joint between movable rod (17) and the locating lever and locating rack (16).

5. The apparatus for detecting defects in an optical film according to claim 4, wherein: activity groove (19) have just been seted up to the position of upper portion to movable rod (17) tip of locating rack (16), the tip of movable rod (17) is just provided with locating piece (20) to the position of activity groove (19), the lower extreme fixedly connected with guide bar (21) of locating piece (20), the lower part ring side cover of guide bar (21) is equipped with fixed block (22), fixedly connected with reset spring (23) between fixed block (22) and locating piece (20), the ring side of guide bar (21) is located to reset spring (23) cover.

6. The apparatus for detecting defects in an optical film according to claim 1, wherein: both ends all are provided with arc portion (24) about the upside of backup pad (9), two support columns (25) of lower extreme fixedly connected with of backup pad (9), the lower extreme fixed connection of support column (25) is at the upside of supporting baseplate (1).